# arithmetic mean

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### noun Statistics.

the mean obtained by adding several quantities together and dividing the sum by the number of quantities: the arithmetic mean of 1, 5, 2, and 8 is 4.

## QUIZZES

#### QUIZ YOURSELF ON "WAS" VS. "WERE"!

Were you ready for a quiz on this topic? Well, here it is! See how well you can differentiate between the uses of "was" vs. "were" in this quiz.
Question 1 of 7
“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.
Also called average.

## Origin ofarithmetic mean

First recorded in 1790–1800

## Words nearby arithmetic mean

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

## British Dictionary definitions for arithmetic mean

arithmetic mean

### noun

an average value of a set of integers, terms, or quantities, expressed as their sum divided by their numberthe arithmetic mean of 3, 4, and 8 is 5 Often shortened to: mean Also called: average Compare geometric mean
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

## Medical definitions for arithmetic mean

arithmetic mean
[ ə-rĭthmĭ-tĭk ]

### n.

The value obtained by calculating the sum of a set of quantities and then dividing that sum by the number of quantities in the set.average